Is rebrand really the answer? I feel like the current egregore is what holds this place together. Changing it could go both ways. New members could change the dynamic which could be good but they also have less commitment to the place. They also have no identity here. Could result in less drama/loss of older members and the new ones could just forget about this place and just be in their +20 discord servers.
I think best would be 1-2 more basic rules like no pedos, boundaries for turquie, bot protection (just an image number verification or so) and advertising. Seriously, I feel like people say recruiting new members wouldn't work but I doubt anyone has seriously tried it. I have not. I feel like putting 1 hour per week in for 4 weeks to make bait posts etc for 1 month could easily result in like 5 new members. Together with a more friendly and less paranoid welcoming culture (chill with the puppet disses) it would work.